These crossovers are completely contained within themselves. They are not part of any bigger continuity, yet.
Lew Landers, a news reporter played by Jim McKrell, first appeared in The Howling then Gremlins.
Ghostbuster meets Casper
Dr. Raymond Stantz, played by Dan Aykroyd, from Ghostbusters appeared on Casper. Ghostbusters spun off Ghostbusters II. Casper spun off two prequels: Casper: A Spirited Beginning and Casper Meets Wendy.
Terminator in the Abyss
The TV anchorman from The Terminator, played by Joe Farago, appeared in The Abyss. The Benthic Petroleum company from The Abyss appeared in Terminator 2: Judgment Day. Terminator 2: Judgment Day is followed by three more films and Terminator: The Sarah Connor Chronicles televsion series.
Before Babylon 5 spun off six television films and Crusade, in the episode "There All Honor Lies", Captain John Sheridan is presented with a teddy bear which is supposed to be a representation of him. He disapproves and throws it out of an airlock. The teddy bear ends up on Space Cases "Who Goes Where".
Isador "Machete" Cortez, played by Danny Trejo, first appeared in the Spy Kids series before being given his own Machete series.
The characters Jay and Silent Bob, played by Jason Mewes and Kevin Smith, are fairly recognizable and can be seen outside the View Askewniverse in Scream 3. I can not determine the chronology of the crossover within the continuity. Scream 3 was released the year after Dogma.
The Fast and the Furious
Better Luck Tomorrow was directed by Justin Lin and starred Sung Kang as Han Hu. Justin Lin directed The Fast and the Furious: Tokyo Drift and brought Sung Kang as Han Seoul-Oh. It was established Seoul-Oh was a false name.
Very small continuities
- Randolph and Mortimer Duke from Trading Places appeared on Coming to America.
- Stanley Anderson played the President in The Rock and Armageddon; both were directed by Michael Bay. There is further speculation that Captain John Patrick Mason, played by Sean Connery, is a retired James Bond, which would greatly expand this continuity.
- Special Agent Ray Nicolette, played by Michael Keaton, from Jackie Brown appeared in Out of Sight; both are based on Elmore Leonard novels.
Series with two or more colors were on multiple networks. The main color is the series last network.